Chase for printing-presses



(No Model.)

' J. J. RAPTER.

CHASE FOR PRINTING PRESSES.

Patented July 30, 1895. .Zv

Inventor.-

Jose izJRy ter UNITED STATES PATENT OFFICE.

JOSEPH J. RAFTER, OF HARTFORD, CONNECTICUT.

CHASE FO-R PRlNTlNG-PRESSES.

SPECIFICATION forming part of Letters Patent No'. 543,562, dated July30, 1895. 1

Application filed May 14, 1895- Serial N0.549,240. (No model.)

To all whom it may concern.-

Be it known that I, JOSEPH J. RAFT-ER, a citizen of the United States,residing at Hartford, in the county of Hartford and State ofConnecticut, have invented certain new and useful Improvements in Chasesfor Printing- Presses, of which the following is a-specification. l

This invention relates to an improvement in chases forprinting-presses;and the object of the invention is to provide a chase that canbequickly, easily, and readily taken apart and put together, and soconstructed as to be made larger or smaller to adapt it to be used withdifferent sizes of printingpresses, whereby the necessity of having anumber of chases of different sizes is obviated.

A further object of the invention is to provide an improved clampingdevice for the chase that can be easily and quickly adjusted onto thetype to be held therein, and which will remain in its adjusted positionuntil manually readjusted.

In the accompanying drawings, forming partof this specification, Figure1 is a top view of the improved chase, a part thereof being shown indotted lines. Fig. 2 is alsoa top view ofa portion of the frame of thechase, shown as having its side constructed in sections. Fig. 3 is alongitudinal sectional view of the clamping device in line a a, Fig.

1; and Fig. 4 is a sectional view of a portion of the chase in line!) b,Fig. 1, together with the clamping or holding nut and means foractuating the same, said figure also showing the clamp in dotted lines.

Similar characters represent like parts in all the figures of thedrawings.

This chase, in the preferred form thereof herein shown, consists of asuitable frame of any suitable material, (designated, generally, as 50,)the sides and ends thereof beingof any suitable width andthickness toadapt it for the purpose'to which it is to be used, and having each ofits sides or ends composed of sections 8, united to each other bysuitable dovetail joints 9 of any suitable construction; but, as hereinshown, each section of the frame has a dovetail mortise 10 at one of itsends and a dovetail tenon 11 at its opposite end, adapted to fit intocorresponding tenons and mortises on similar sections of the frame.These mortises andtenons are preferably disposed on beveled or inclinedends of the sections, in order to constitute a more perfect fit when thesections are used as end portions of the frame and also to form atighter joint.

These tenons 11 and mortises 10 are disposed on the faces of the ends ofthe sections at equal distances from the sides thereof in order that thesections may be reversible and interchangeable, and thereby adapted toconstitute either end sections 15 or a portion of either of the sides,as 12,0r ends of the frame, as may be desired.

Disposed in one of the sides and likewise in one of the ends of theframe are suit-able clamping devices. It is understood, however, thatthese clamping devices may be arranged in both sides and both ends ofthe frame, if desired, this being, however, considered usuallyunnecessary in a chase. ofthese clamping devices, in the preferred formthereof herein shown, comprises a reciprocatory clamping plate or jaw 16of any suitable construction normally seated in a recess 17 of anysuitable shape in the inner wall ofthe frame, whereby its outer facewill be flush with the inner wall of the chase.

A transverse aperture or slot 18 of any suitable size extends from theouter wall of the chase-frame and communicateswith the recess 17.Through this aperture or slot a screw-threaded spindle 19 is adapted toproj ect, the inner end thereof extending through an aperture in theclamping plate or jaw 16, and being headed therein, as at 20, to preventdisconnection from said jaw or plate. Ad jacent the clampiug plates orjaws the frame is also provided with suitable slots or apertures 21 inthe upper walls, which preferably extend from top to bottom thereof, andin each of these apertures a peripherally-toothed clamping or holdingnut 22 and a peripherally-toothed check-nut 23 is adapted to work on thescrew-threaded spindle 19 to adjust and clamp the clamping plate or jaw16 in position to clamp the type in the chase. The recesses between theteeth of these nuts are adapted to receive an actuating bar or lever 24of any suitable construction adapted to act uate the nuts, and therebytightly clamp the type within the chase.

Each

In practice, a number of sections 8 will be forwarded to aprinting-office, and when it is desired to construct a chase havingsimply four sections, (two ends and two sides) similar to that shown inFig. 1, or one of the character shown in Fig. 2, it is only necessary tounite, by .means of the dovetail joints, these sections, and therebyform a chase of the desired size. The type having been arranged in thechase, the clamps 16 are adjusted thereon by means of the clamping-nuts22, and when tightly clamped into position the checknuts 23 are turnedinto position to engage the clamping-nuts, and thereby hold the sameagainst movement. When it is desired to remove the type from the chase,each checknnt is turned to disengage its clamping-nut, and both can thenbe turned by means of the lever or other means to withdraw the clampingplates or jaws from the type and permit the same to be removed.

Having thus described my invention, what I claim is- 1. A chase for aprinting-press composed of sections, and provided with a suitableclamping device comprising a clamping plate adapted to normally rest ina recess in theinner wall of a section; and having its outer facethereof flush with said inner wall; a screw threaded spindle connectedto said plate, and extending transversely through the section; aperipherally-toothed clam ping-nut, and a peripherallytoothed check-nutdisposed in an aperture in the top wall of the section, and working onsaid screw-threaded spindle to adjust the clamping-plate, substantiallyas described.

2. A chase foraprinting-press consisting of a frame and a clampingdevice, said clamping device comprising a clamping-plate adapted tonormally restin a recess in theinner wall of the frame, and having itsouter face flush with said inner wall; a screwthreaded spindleconnecting said plate, and extending transversely through the frame; anda clamping-nut and a check-nut disposed in an aperture in the framebetween the inner and outer walls thereof, and working on saidscrewthreaded spindle, to adjust the clam ping plate, substantially asdescribed.

3. A chase fora printing-press comprisinga frame having an apertureextending from the top to the bottom walls thereof; a clamping deviceconsisting of a plate adapted to nor mally rest in a recess in the innerwall of the frame, and having its outer face flush with said inner wall;a screw-threaded spindle projecting transversely through the frame andsecured to said plate; anda peripherallytoothed clamping-nut and aperipherallytoothed check-nut disposed in said aperture, and adapted towork on said spindle, whereby said plate can be adjusted,clamped,audheld in pd'sition, until manually readjusted, sub stantially asdescribed.

4. A chase for a printing-press comprising a frame having an apertureextending from the top to the bottom walls thereof intermediate of itsouter and inner wall; a clamping-plate adapted to normally rest in arecess in the inner wall of the frame; a screw-threaded spindleprojecting through the frame and aperture and secured to said plate; anda c1amping-nnt and a check-nut disposed in said aperture, and adapted towork on said spindle, whereby said plate can be adjusted, clamped, andheld in position until manually readjusted, substantially as described.

J OSEPII J. RAFTER. Witnesses:

FRED. J. DOLE, S. W. POTTS.

